期刊
APPLIED MATHEMATICS LETTERS
卷 110, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.aml.2020.106589
关键词
Coupled Gerdjikov-Ivanov equation; (partial derivative)over-bar-dressing method; Lax pair; Recursive operator; Soliton solution
资金
- National Science Foundation of China [11671095, 51879045]
We apply the (partial derivative) over bar -dressing method to study a coupled Gerdjikov-Ivanov (GI) equation. Compared with results on the classical coupled GI equation, more general spatial and a time singular spectral problems associated with GI equation are derived from a local 2 x 2 matrix (partial derivative) over bar -equation via two linear constraint equations. A more general GI hierarchy with source is proposed by using recursive operator. The N-solitons of the coupled GI equation are constructed still based the (partial derivative) over bar -equation by choosing a special spectral transformation matrix. Further the explicit one- and two-soliton solutions are obtained. The results on the GI equation can be recovered from the conclusion given above as special reductions. (C) 2020 Elsevier Ltd. All rights reserved.
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